| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a port mirror ring function adding device for adding a port mirror ring function to a switching hub which is not provided with any destination port adding circuit inside. SOLUTION: This device is connected with a port 2 to be monitored of a switching hub 10, and an isernet frame 22 which is the same as a received Ethernet (registered trademark) frame 20 is generated, and the destination address of the generated isernet frame 22 is rewritten into the address of a monitoring terminal 70, and the isernet frame 22 is transmitted.</p> |
